Upgrade bundled zeroconf and fix bundle-build

src/meson.build

@@ -65,7 +65,6 @@ if bundle_grpc
     dependency('python3')
     current_grpc_version = '1.73.1'
     current_protobuf_version = '6.31.1'
-    current_zeroconf_version  = '0.115.2'
 
     setup = join_paths(meson_source_root, 'grpcio-' + current_grpc_version, 'build_script.py')
 
@@ -79,17 +78,22 @@ if bundle_grpc
 
     setup = join_paths(meson_source_root, 'protobuf-' + current_protobuf_version, 'build_script.py')
 
-    grpc = custom_target('proto_build',
+    proto = custom_target('proto_build',
         output: 'google',
         command: [setup, join_paths(meson_source_root, 'protobuf-' + current_protobuf_version), join_paths(meson.current_build_dir(), 'google')],
         install: true,
         install_dir: install_libdir,
         build_by_default: true,
     )
+endif
+
+if bundle_zeroconf
+    dependency('python3')
+    current_zeroconf_version  = '0.147.0'
 
     setup = join_paths(meson_source_root, 'zeroconf-' + current_zeroconf_version, 'build_script.py')
 
-    grpc = custom_target('zeroconf_build',
+    zeroconf = custom_target('zeroconf_build',
         output: 'zeroconf',
         command: [setup, join_paths(meson_source_root, 'zeroconf-' + current_zeroconf_version), join_paths(meson.current_build_dir(), 'zeroconf')],
         install: true,
@@ -104,4 +108,4 @@ if bundle_landlock
         install_dir: join_paths(install_libdir, 'landlock'),
         strip_directory: true
     )
-endif
+endif